Prology PS-10 Poseidon

10″ subwoofer · dual 4 Ω · 250 W RMS

Fs 44.3 HzQts 0.59Vas 0.64 ft³

Recommended box

For a sedan, one sub, 250 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume0.74 ft³ (21 L)
Qtc0.80
Fc60 Hz
F3 (−3 dB, no cabin gain)56 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 13 3/8″
Open sealed box in designer

Ported

Net volume1.98 ft³ (56 L)
Tuning (Fb)34 Hz
Portslot 1 9/16 × 14 5/16″, 22 7/16″ long
Port velocity at 250 W54 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs44.3 Hz
Qts0.59
Qes0.73
Qms3
Vas0.64 ft³
Re (one coil)3.2 Ω
Sd51.2 in²
Xmax≈ 0.39″
Mms111 g calc.
BL11.6 T·m calc.
EBP61 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.3 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power250 W

Mounting dimensions

Ø≈ 10 1/4″cutout Ø9 1/16″mounting depth 4 5/16″magnet Ø≈ 5 7/8″
Cutout diameter9 1/16″
Mounting depth4 5/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other Prology 10″ models